The amount of against-the-wound astigmatism and absolute value of length of the induced vector did not differ significantly between groups ( P > 0.05, paired t test). In both groups, irregular astigmatism 1 day after surgery was significantly greater than the preoperative levels ( P 0.05). ...
Defocus and astigmatism target was close to neutral for eyes with low amount of HOAs (0 and 12-months), where 91.66% of eyes agreed within ± 0.50D in IOL power calculation (RTO vs. SRK/T). However, corneas with higher amounts of HOAs presented greater visual improvement with an ...
In instances where magnification is not corrected, the SD-OCT scan area will become wider in eyes with longer ALs, thus leading to possible misdiagnosis16. Another aspect to consider is that population data of individuals with high myopia, hyperopia or astigmatism are not usually included in the...
PURPOSE : Purpose of this study was to compare corneal higher order aberrations (HOA) of eyes with regular high astigmatism to that with mild to moderate keratoconus. METHODS : Fifty eyes were included in this Prospective observational comparative study. Out of 50 eyes, 25 eyes were having ...
Corneal regular and irregular astigmatism assessed by Fourier analysis of videokeratography data in normal and pathologic eyes. 2004;111(4):752-757Tanabe T, Tomidokoro A, Samejima T, et al.: Corneal regular and irregular astigmatism assessed by Fourier analysis of videokera- tography data in ...
The absolute residual refractive astigmatism was 1.0 and 0.75 Diopters, respectively. The IOL rotation was within 3掳 in both eyes, therefore IOL repositioning was not necessary. Complications were not observed in our cases. These cases demonstrate that toric IOL implantation is a predictable and ...
However,the influence of this procedure on corneal topography has notbeen studied in detail. We conducted the current prospectivestudy to quantitatively assess changes in corneal regular andirregular astigmatism in subjects undergoing overnight orthokeratology.Fifty-nine eyes of 36...